Demountable rim.



Nl. F. PATTON.

DENIOUNTABLE RIM. `APPL|cAT|oN mso :uw 2o, 1916.

www@ pate'ntemy 3', 19u.

MOSES F. PATTON, F TUSCALOOSA. ALABAMA.

DEMOUNTABLE RIM.

Application filed July 20, 1916.

To all 11i/wm it may concern:

Be it known that I, Mosl-:s F. IA'r'roN, acitizen of the Unlted Statesof America. re-

siding at 'I`usca1oosa, in the county of Tuscaloosa and State ofAlabama, have invented certain new and. useful Improvements in.[)emountable Rims, of which the following is a specification.

lily-invention relates to demountable rims tor automobile tires and hasfor its object to provide a novel and ctl'ecti-ve means for contractingand expanding the demountable rim so that a pneumatictire can be easilymounted thereon and detached therefrom.

A further object of my invention is to adapt the contracting and.expanding elements for the split rim to hold its ends in alinenlent. Afurther object of my'invention is to design the wheel fellyto receivethe rim ad justing elements in a counter-sunk seat and to provide novelmeans to'tie the ends of the tellyl band in said seat so that it can beshrunk tight on the felly.

These and other objects of my invention are hereinafter moreparticularly described by reference to the accompanying drawings Whichform a in whichi- Figure 1 is a partial view of a section 'of thedemountable rim showing its expanding,

contracting and centering means in plan.

Fig. 2 1s a vertical sectional View ofa poron the line 2-2 of Fig. f1,the felly band and felly being shown in elevation.

lSimilar reference numerals refer to similar parts throughout thedrawings.

In the-embodiment of my invention' illus-iV trat'ed, I show a woodenWheel felly 1 supported on spokes 2 and having a felly band .3 shrunkthereon. `Beneath the expanding and contracting mechanism for the.demount' 'able rim 4, the Wooden felly isparted and a metallic block 5is ins'erted. On -each side of this block, which is of less depth thanthe felly itself, the Aadjacent .ends of the :telly 4are `also cut away,to forma .countersunk seat 6. with its outer face curvedv circumferf'end Walls `substantially radially disposed. The band 3 is shaped to f tdown into' this seatand its ends are conentially and with itsAiieetiad'by rivets 8 to the ends of the metallic.

,.ihS-rtblock 5 which theyoverlapand 6X1 f' @grito a curved seaty9di'sposed transitei'sey" Specification of Letters Patent.

.ators ll and' l2 t'or AThe shoulders l0 1n vertical cross section arcpart of this specification, and

-on 'or take-n oli'. "Arfter thenew -tireis in place/011l thecontractedV rim, .the :screw 1 3: is then operated to draw themeinllvatenteddnlvf. 119117.

Serial No. 110.332.

across the middle ot' lhc block and designed to receive the roundedtransverse shoulders l() on the bottoni ot' the wedge shaped actuthcdelhountable rinl.

rounded so as to tit snuglyr into tlul curved scafi) and they areprovided with reversely threaded openings in transverse alineinenlacross the rim which receive the expanding andv contracting screw lil.the ends ot' which a're reversely threaded and one end ot' which isprovided with a square wrench head 14 The wedge actuators ll and l2 aresinlil'al but reversely disposed as will be observed in Fig. 1, eachhaving its'end edges converging from the side edges of the rim to itscircumferential cente.0 line at an angle ot' about l5?. andveachactuator, at. its outer side edge. ha. a bead l'designed to form acontiulnition ot -tlie beads 16 on the side edges ol' the de- .toengagethe under face of the rim and form an overhanging shoulder 19. The'centei` main 'Wedge shaped body portion of each actuator is raised toform a tiush continuation of the outer surface of the rim l. LIn

4 order to connect t-he demountable rim en 'ds tothe actuators, Iconnect by rivets :mito

the underface l'of each rim end a V shaped angle orblock 21 which hasits inside upper .corner edge undercut to interfit with the shoulder 19.It will be understood that thisl locking arrangement permits the angledend 'edges of. the a'ctu'ators'to slide inthe ways formed for them bythelips 17 and blocks 2l and in .doing so to'act as,a double wedge vtopushapart and pull together therim ends.

' Inoperatiom the screw 13.is turned so 'as to force the lockingvmembersapart and 1n moving. in this" manner the"V .rims co-act withamend lips-.17 and.. with thev-bloeks' .211 onthe' rim ends to draw thelatter. to-

getheruntil the'demonntable rim is contracted when the'tire 22 can o ereadilyput or. repalred bers 11 and 12 together, in doing which theco-acting wedge lips 17 and shoulders 19 will act to :torce the ends ofthe rim apart to vexpand the rim and tighten its engagement with thetire until the latter is securely held in place thereon. fast thereon isslipped on the felly with the shoulders resting in the seat 9 in the iblock 5. It will also be noted that theactuators 11 and 12 beingcontrolled by the nsame screw will move equally in opposite directionsand will always, through the inter- 4locking wedge faces on the.actuators and supports the tire 22, and that ,the shoulders J 1 0 'willassist in holding the rim against traction strains which tend to moveitl circumferentially on the telly.

The felly band can be mounted and shrunk i on the felly in the mannerwell understood -mechanism under the ends of ,the split der' and bylparting it and connecting its ends tothe metal block 5, the .ends ofthe wooden telly will be drawn tightly against this block which is thussimply and strongly incorporatedin the felly and the latter is notweakened to make'place forthe adjusting mountable rim. I .v

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is l 1. A centering and fastening meansfor.split demountable rims comprising in come bination a pair of reverselytapering rim actuators, means to move said actuators toward and fromeach .other transversely of the rim, said actuators when drawn togetherforming a section of the rim, and taper means at the rim ends whichslidably interlock with the taper edges of said actuators, substantiallyas' described.

2. A split demountable rim having a por'- tion thereof formed by twotransversely movable members interposed between the.

rim ends and having similarly but reversely tapering end edges,A theends of the rim The rim withthe tirev proper having a complementarytaper and having portions'inclined to lcorrespond with and disposed toslidably interlock with the -tapering end portions of said movable rimmembers, and means to move said rim members toward or from each other toloosen or tighten the rim. 3. A split deinountablerim having oppositelydisposed movable rim portions between' the rim ends, co-acting wedgingmembers on the rim ends and movable rim .'portions disposed to contractthe rim as the rim portions are moved apart and1to expand the rim assaid portions are moved toward each other,y and means to move the rimportions as described. l'.

4. In combination, al deinountable rim which is split and has under itsends lips:I

which converge from `the sides in opposite directions toward the centerof each. end, two actuators each having channels at its ends whichunderlie the rim ends and which receive a lip on each end of the rim andare similarly disposed, means to movethe actuators in opposite'directions to contract or expand the rim. p r

5. Thel combination with a split demountable rim having V-shaped ends,of a'pair of reversely disposed wedge shaped rim sections adapted, whenjuxtaposed, to, till out the space between the rim ends, beads on saidadjustable poi-tions adapted to form a continuation of the rim beads, adoubleactingnvedge formed by engaging members on said rim portions. andon the V-shaped rim ends, and'means to movesaid rim portionstransversely of the rim to actuate the wedge for the purposes described.

l`,6. A split demonntable rim having oppositely disposed movable rimportions between the rim ends,`a double acting wedge means connectingsaid rimvportions to the rimends, shoulders under said portions, lareversely threaded screw in threaded ein gagement with said shoulders,and a wheel telly counter-sunk toreceivesaid double acting wedge meansand shoulders, substantially as described.

In testimony whereof 1 fMOSES F. PATTON.

Titnesses 4 SAM L. FLIPPEN, v Jon W. Fnirrnn.

airix v'my signature.-

